Tire-building machine.



T. MIDGLEY.

TIRE BUILDING MACHINE.

APPLICATION FILED MAR. Is. I9I4.

1,161,949; I .I Patented Nov. 3o,` 1915.

2 SHEETS-SHEET I.

' 1. MIDGLEY.

-TIRE BUILDING MACHINE.

APPLlcATloN FILED m11. 1a. 1914.

1,1 61,949. Patented Nov. 3,0, 1915.

2 SHEETS-SHEET 2.

narran s.

'arena ricerca.

rnoraas ramener, or wonrnineron, onto, Asserroa 'ro mensen a wnren'r, or nnrnornmcnrean, a consonance? on rimarcare.

rana-apuntas Maenner..

Specification' of 'Letters Patent.

Patented Nov. 3Q, il9i5.

Application med March is, i914. Serial tc. 825,483.

To all whom it may concern:

Be it known that l, Ttienne li/inDGLnY, a citizen of the United States, residing in Worthington, county of Franklin, and State of Ohio., have invented certain new and useful improvements in Tire-Building Machines, of which the following is a full.'

plied being Acentrally pressed against the medial portion of the core and being then pressed at the lateral portions against `the sides of `the core, this later operation being either manually performed or power per-l formed by radially moving tools Such as spinning rolls, disks, and the like.

The present invention provides a novel machine which employs nozzles for discharging compressed air or the like against the sides of the tire whereby the shaping operation is more effectively accomplished than with the usual methods, in that the fabric is not crushed ordistorted' by the air as from'contact with the hard surfaces of tools. r

In the drawing I have shown a form of apparatus which is suitable for use in practising my invention, iny which drawing:

Figure 1 is a front elevation of the machine; Fig. 2 is an underneath plan view thereof; Fig. 3 is a front elevati'on of a modified form of the invention; Fig. d is an underneath plan view of the modified' form withparts in section; Fig. 5 is a longitudinal sectional view on theline 5-5, Fig. 3. Referring to the drawing, 10 designates a frame which supports a plurality of U shaped slides 11, preferablythree in number, which are graduated in size to telescopically fit within each other, and are connected together by tongue and groove guides 12,-the outermost slide being connected to the frame by a tongue and groove guide 13. The slides carry-respective pins 14 which it in corresponding spiral cam slots 15 formed in a longitudinally disposed cyl-r inder 16 that is mounted in suitable bear-- ings 17 on the frame. Meshing bevel gears 1S and 19 connect the cylinder for rotation with the drive shaft 2() which is mounted in suitable bearings 2l on the Iframe, and is preferably driven by a. crankl handle 22. Durmgrotation4 of the cylinder the slots 15 move the pins 14 in alinement longitudinally of the cylinder and impart correspondmg movement to the respective slides.

A palr 'of air nozzles 23 are directedtoward each other on opposite sides of Ithe frame and each is connected to the legs loi the slides at the corresponding side of theframe by a link mechanism which comprises parallel links 24C which are piv'oted to corresponding slides as at 25 andare terminally connected Atogether by transverse links 26 which are pivoted to the parallel links as at 27. The nozzles vare so spaced apart as to receive the tire 28 therebetween. Upon actuation o the slides the nozzles are moved radially along the sides of the tire and are .at the same time inclined through the instrumentality of the link mechanisms to shape the tire to the core as will now be more fully described.

The spiral cam slots 15 which control vthe movements of the slides are of substantially umform pitch near the outer end of the cylinder as shown at A, and move the slides lmtially as a unit. Theychange, however, both in pitch and in relative d irection'near the inner end .of the cylinder as shown at B, y

and move the slides in their final stages of movement independently of each other, both in direction and speed. During the initial movement of the slides as a unit ,the4 link mechanismsmove the nozzles radially of the tire to discharge against the medial portion oi the tire and shape it to the form. During the nal stages Yof movement of the slides the link mechanisms move the nozzles radially and simultaneously rock them to successive predetermined receding angular positions relative to the plane of the core for discharging againstvthe sides` of the tire at the angles necessary to most, effectively lshape them to the core.

tions of service or sizes of tires'.

I do not limit myself to air as the pressure agent`,.equivalents being possible. Except when expressly specied in the claims, Ido not limit myself to links or telescopically united slides for operating the nozzles, nor t the more particular construction of cam cylinder mentioned, it being only essential to the practice of the invention that a fluid under pressure be directed in a controllable stream against the tire to shape it to the core form.

A modified form of the device is shown in Figs. 3 to 5 inclusive, in which 35 designates supporting bars that are equipped With legs 36 and are so spaced apartl as to receive the tire '37 therebetween. A U shaped slide 38 is dovetailed in the bars as at 39 and is actuated by a shaft 40 which is journaled in bearings 41 on the bars and which hasa pinion 42 engaging a rack 43 .on the slide,` the shaft being preferably driven by a crank handle 44.

A pair of nozzles 45 are mounted on the slide and are manipulated in mison to discharge at the proper angles against the sides of the tire by the following mechanism. Each nozzle is mounted on a block 46 which is dovetailed to slide transversely on the slide, the block carrying a guide pin 47 -Which passes through a transverse slot 48 in the slide and through a longitudinal curvilinear slot 49 in the supporting bar. During advance of the slide longitudinally of the frame bars the nozzles will be directed by the action of the slots on their guide pins to move radially of the tire and at the same time to assume such recedin angular positions relative to the plane 0 the tire as to deliver their streams at the necessary angles to effectively shape the sides of the tire to the core. l

' The operations of both the preferred and modified forms of the invention are substantially the same-so that `a description of the operation of the preferred form Will suffice for both. The frame l0 is first juxtaposed to the core as shown in Fig. l. As each Alayer of fabric is applied in succession to form the tire the drive shaft 20 is actuated to advance the slides radially of the tire and simultaneously operate the link mechanisms to incline the nozzles with respect to the plane of the 1tire whereby vthe pressure of the compressed air vagainst the sides of the tire effectively shapes the tire to the configuration of the core Without mutilating or crushing the fabric. l

j tire forming core,

Having thus described my invention, what I claim and desire to have protected by Letters Patent is:

l. A tire building machine embodying a tire forming core, a support in juxtaposition to the core, and a nozzle mounted on the support to move relatively and vdischarge a pressure medium against the tire.

2. A tire building machine embodying a' tire forming core, a support in juxtaposition to the core, and a nozzle mounted on the support to pass radially-along the side of the tire and discharge a pressure medium thereagainst.

3. A tire' building machine embodying a tire forming core, a support in juxtaposition to the core, anda nozzle mounted on the support to pass 1radially along the side of the tire at an angle thereto and discharge a pressure medium against the tire.

4. A tire building machine embodying a tire forming core, a support in juxtaposition to the core, and a nozzle mounted on the support to pass radially along the side of the tire at a receding angle thereto and discharge a pressure medium against the tire.

5. A tire building machine embodying a tire forming core, a support in juxtaposition to the core, nozzles positioned thereon to discharge pressure mediums against opposite sides of the tire, and means for moving the nozzles inunison radially along the sides of the tire.

6.- A tire building machine embodying-a tire forming core, a support in juxtaposition to the core, nozzles positioned lthereon for discharging pressure mediums against the sides of the tire, andslides for moving the nozzles radially along the sides'of the tire.

7. A tire building machine embodying a tire forming core, a support in j uxtapositlon to the core, nozzles therein for discharging lpressure mediums against the sides of the tire, and link mechanisms for inclining the nozzles With'respect to the lane of the tire.

8. A tire building machlne embodyin a tire forming core, a support in juxtaposition to the core, a nozzle for discharging a pressure medium against the tire and mounted on the support for radial movement with respect t'o the tire, and means for adjusting the nozzle laterally With respect to the tire.

9. A tire building machine embodyin a tire forming core, a support in juxtaposition to the core, a slide mounted on said support for radial movement with respect to the tire, a mem er mounted on said slide for transverse movement with respect to the tire, and a'nozzlecarried by said member for discharging a pressure medium against the tire. l A

10. A- tire building machine embodying a a support in juxtaposition to the core,

a nozzle for discharging a. pres- 1180 sure medium against the side of the tire, a

' cam on said support, telescopically united slides operated by the cam for independent radial movement with respect to the tire, and a link mechanism connecting said nozzle to said slides and actuated by the independent movement of the slides to incline said nozzle with respect tothe plane of the tire.

11. A tire building machine embodying a tire forming core, a support in juxtaposition to the core, a slide mounted on said support for radial movement with respect to the tire, there being a transverse slot in said slots, and a nozzle on said block for discharging a pressure medium against the tire.

Signed at Detroit, county of Wayne, 2o State of Michigan, this A13th day of March,

THGMAS MIDGLEY.

Witnesses: a

E. LA BUSCHEWSKY,

J. H. SWIFT. 

